About Visual Acuity and Type Design: A Protocol

This article describes how the principle of visual acuity could inform design decisions particularly (although not exclusively) in type design, by (1) providing an overview of the optometric (geometric and mathematic) protocols behind the calculation of visual acuity, (2) describing the typographic features that could be directly influenced by the principle of visual acuity, and (3) introducing a protocol to use such a relationship to calculate the relative acuity of typographic signs and guide the design process of typographic and non-typographic signs.